I'm decently picky about the boxes. For systems like Genesis, Master System and Playstation 2 the plastic cover and inserts need to be in great condition for me to consider an increase in price. For paper boxed games on systems like Nintendo, Virtual Boy and Neo Geo Pocket they need to be in some condition to consider a price increase. Of course if they look like crap and has been ripped up I don't consider much to its value, but closer to mint the more I'm willing to pay considering on rarity and demand for the game.